Process for impregnating a porous material with a cross-linkable composition
CA 2385397 A1 · Owner: Parsons, Bruce A. · Inventors: Parsons, Bruce A.; Loomis, Gary L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for impregnating a porous material with a cross-linkable composition is disclosed. The degree of impregnation and placement of the cross-linkable composition within the pores of the porous material can be controlled very precisely through the use of a pressure differential. The pressure differential is effected through a nonreactive gas a vacuum, or a combination , thereof. Medical devices produced using such a method are also disclosed.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.